So just a little thing that's bugging me. Workmates arranged a weekend away for one of their birthdays. I was originally asked to go but didn't hear anymore about it. Now found out that they have planned the weekend away without mentioning it to me and I'm working all that weekend to cover them. I knew I would probably have to cover that weekend anyway, but the fact they didn't even mention it to me and say 'so this is happening, is that ok with you', I think personally is a bit shit. AIBU?